About ______ of the body weight of a mammal is water....? Mcqs

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About ______ of the body weight of a mammal is water....?

(A) 70%
(B) 75%

(C) 80%
(D) 90%

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The echo (reflected sounD. will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ________...?

(A) 1120 ft
(B) 120 ft

(C) 56 ft
(D) 100 ft

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The theory of Expanding Universe was first propounded by____________...?

(A) Einstein
(B) Newton

(C) Gahleo
(D) Hubble

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Which from the following is true for “Sound”...?

(A) Sound cannot travel through a vacuum
(B) Sound cannot travel through gases

(C) Sound cannot travel through liquids
(D) Sound cannot travel through solids

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Ethyl alcohol was prepared by ______...?

(A) Ibne-Sina
(B) Al-Razi

(C) Al-Beruni
(D) Jaber bin-Hayan

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Which statement is incorrect about gas molecules...?

(A) Molecules are widely separated
(B) Molecules have low attractive forces

(C) Molecules free to move in any direction
(D) Molecules collide with one another

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‘Bar’ is the unit of___________...?

(A) Temperature
(B) Heat

(C) Atmospheric pressure
(D) Current

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The Genetic constitution of a trait is called _____...?

(A) Genotype
(B) Phenotype

(C) Genome
(D) Phenyl

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Which organelle contains thread-like structures that store chemical instructions for cell growth and function...?

(A) Mitochondria
(B) Ribosomes

(C) Chromosomes
(D) Lysosomes

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Bacteria that are used in producing transgenic plants, such as golden rice, is:...?

(A) E. coli
(B) Mycobacterium

(C) Xanthomonas
(D) Agrobacterium tumefaciens

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